Problem with Integration Problem

[thereddevils]

Homework Statement

Evaluate the following integrals .

(1) $$\int \sin \frac{1}{x} dx$$

(2) $$\int \sin x^2 dx$$

Homework Equations

The Attempt at a Solution

i don see a way to transform those integrals to a form where i can integrate them

 

[zachzach]

Homework Statement

Evaluate the following integrals .

(1) $$\int \sin \frac{1}{x} dx$$

(2) $$\int \sin x^2 dx$$

Homework Equations

The Attempt at a Solution

i don see a way to transform those integrals to a form where i can integrate them

I know $$\int \sin x^2 dx$$ does not have an integral in terms of elementary functions so you have integrate its Taylor series or something else.

 

[zachzach]

Use u substitution, then integrate by parts...

Have you tried that? It does not work.

 

[thereddevils]

I have not heard of the taylor series , maybe these questions are not for my level .

 

[physicsman2]

I have not heard of the taylor series , maybe these questions are not for my level .

Ever heard of the reduction formulas?

 

[The Chaz]

Have you tried that? It does not work.

There are a lot of mysterious posts by this "estro" character that suddenly disappear... it's like the Bermuda Triangle of PF!

 

[thereddevils]

There are a lot of mysterious posts by this "estro" character that suddenly disappear... it's like the Bermuda Triangle of PF!

how can that happen ? I don't see his post or he can delete his own posts ? I thought only the mods or admins can do that , this is strange.

 

[estro]

There are a lot of mysterious posts by this "estro" character that suddenly disappear... it's like the Bermuda Triangle of PF!

I did delete my post, as it was foolish...

 

[The Chaz]

I did delete my post, as it was foolish...

Don't be so hard on yourself! Plus, I like my Bermuda Triangle PF Theory better.